Results 91 to 100 of about 1,110,577 (301)

Coupling of Er3+ ions and Plasmonic Modes in Vertical Nanocavities for Spectral Broadening in Telecom Bands

Advanced Materials Technologies, EarlyView.
Left: Illustration of the glass & nanostructures system and the NIR emission at 1.5 µm, where the colored spheres represent the Er3+ ions within the doped glass. Right: Representation of the Stark splitting of the 4I13/2 and 4I15/2 manifolds of the Er3+, illustrating how the plasmonic modes facilitate the emission from the broader Stark manifold ...
Gaston Lozano Calderón, Víctor Anthony García Rivera, Stéphan Cagnon, Souleymane Toubou Bah, Younès Messaddeq, Euclydes Marega Junior   +5 more
wiley   +1 more source

Computation of Traffic Time Series for Large Populations of IoT Devices

Sensors, 2018
The Internet of Things (IoT) contains sets of hundreds of thousands of network-enabled devices communicating with central controlling nodes or information collectors.
Mikel Izal, Daniel Morató, Eduardo Magaña, Santiago García-Jiménez   +3 more
doaj   +1 more source

Communications and media services [PDF]

NASA's internal and external communication methods are reviewed. NASA information services for the media, for the public, and for employees are discussed.
Kukowski, James F., Mcculla, James W.
core   +1 more source

Optoelectronically Active GaAs/GeSn‐MQW/Ge Heterojunctions Created via Semiconductor Grafting

Advanced Optical Materials, EarlyView.
Semiconductor Grafting enables a lattice‐mismatched GaAs/GeSn‐MQW/Ge heterojunction with engineered band offsets and optical field distribution. The enlarged conduction and valence band discontinuities govern asymmetric carrier transport, producing bias‐dependent dual‐mode photodetection from visible to near‐infrared wavelengths.
Jie Zhou, Haibo Wang, Yang Liu, Yifu Guo, Alireza Abrand, Yiran Li, Jiarui Gong, Hieu D. Trinh, Po Rei Huang, Jianping Shen, Shengqiang Xu, Daniel Vincent, Samuel Haessly, Yi Lu, Munho Kim, Shui‐Qing Yu, Parsian K. Mohseni, Guo‐En Chang, Zetian Mi, Kai Sun, Xiao Gong, Mikhail A. Kats, Zhenqiang Ma   +22 more
wiley   +1 more source

5G Centralized Multi-Cell Scheduling for URLLC: Algorithms and System-Level Performance

IEEE Access, 2018
We study centralized radio access network (C-RAN) with multi-cell scheduling algorithms to overcome the challenges for supporting ultra-reliable low-latency communications (URLLC) in the fifth-generation new radio (5G NR) networks.
Ali Karimi, Klaus I. Pedersen, Nurul Huda Mahmood, Jens Steiner, Preben Mogensen   +4 more
doaj   +1 more source

The implications of usage statistics as an economic factor in scholarly communications [PDF]

, 2005
Usage statistics for electronic resources are needed, and highly desirable, for many reasons. It is encouraging to see the beginnings of quality, reliable usage data.
Morrison, Heather
core  

Substituent Effects on Cyanine Dyes Vary with Position and Chain Length

Advanced Optical Materials, EarlyView.
In cyanines, substituent effects vary as a function of substituent position and cyanine length. Electron‐donating‐ and ‐withdrawing groups at meso‐ and α‐positions of 4n+1/4n−1 long cyanines (n = 1, 2, 3…) cause opposing, hypsochromic and bathochromic shifts of the 1st UV–vis absorption bands.
David Dunlop, Rebecca Strada, Peter Šebej   +2 more
wiley   +1 more source

Optical shutter switching matrix [PDF]

The interface switching systems are discussed which are related to those used in the Space Shuttle ground control system, transmission systems, communications systems, and airborne radar electronic countermeasure systems.
Grove, Charles H.
core   +1 more source

The Evolution of Laser‐Induced Damage Patterns in Polymer Stabilized Liquid Crystals: Insights From Morphological Characterization and Thermo‐Driven Simulations

Advanced Optical Materials, EarlyView.
A dual‐domain PSLC architecture enables direct comparison of alignment‐dependent laser damage within a single device. Crack‐like and seal‐like morphologies emerge under different damage conditions, and their evolution is interpreted through quantitative image analysis and heat‐driven simulations.
Dengcheng Chen, Zoey S. Davidson, Brian P. Radka, Selim Elhadj, Liang‐Chy Chien   +4 more
wiley   +1 more source

Training strategies for semi-supervised remote sensing image captioning

Scientific Reports
Remote sensing image captioning is a rapidly growing application with significant roles in environmental monitoring, disaster response, and military intelligence.
Qimin Cheng, Haojun Cheng, Linfeng Yuan, Yingjie Du, Saifei Tu, Yuqi Xu   +5 more
doaj   +1 more source